The Transportation Department today released new guidance for automated vehicles that, among other things, reaffirms its commitment to ensuring that transportation safety applications can use the 5.9 gigahertz band.
The new guidance, “Preparing for the Future of Transportation: Automated Vehicles 3.0” “builds upon — but does not replace — voluntary guidance” known as “Automated Driving Systems 2.0: A Vision for Safety” that was released last year (TR Daily, Sept. 12, 2017), DoT said. Last year’s AV guidance was the first for the Trump administration and followed guidance issued by the Obama administration in 2016 (TR Daily, Sept. 20, 2016).
In AV 3.0, the Transportation Department reaffirmed that “the Department is continuing its work to preserve the ability for transportation safety applications to function in the 5.9 GHz spectrum.”
“Throughout the Nation there are over 70 active deployments of V2X communications utilizing the 5.9 GHz band,” DoT said. “U.S. DOT currently estimates that by the end of 2018, over 18,000 vehicles will be deployed with aftermarket V2X communications devices and over 1,000 infrastructure V2X devices will be installed at the roadside. Furthermore, all seven channels in the 5.9 GHz band are actively utilized in these deployments. In addition to the Dedicated Short-Range Communication (DSRC)-based deployments, private sector companies are already researching and testing Cellular-V2X technology that would also utilize the 5.9 GHz spectrum.”
DoT said that it “is continuing its work to preserve the ability for transportation safety applications to function in the 5.9 GHz spectrum while exploring methods for sharing the spectrum with other users in a manner that maintains priority use for vehicle safety communications. A three-phase test plan was collaboratively developed with the Federal Communications Commission (FCC) and the U.S. Department of Commerce, and the FCC has completed the first phase. Phases 2 and 3 of the spectrum sharing test plan will explore potential sharing solutions under these more real-world conditions.”
The FCC has not yet released the results of the Phase 1 testing, which was done in the FCC’s lab, on sharing of the 5.9 GHz band between DSRC and Wi-Fi operations. The next two phases of testing are expected to be done in the field. Continue reading →